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mmu: make sure a few constants are 64 bit

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Matheus
2022-09-11 22:23:04 -03:00
parent f423acaedd
commit 3e539b83f9
1 changed files with 9 additions and 8 deletions
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src/arch/x86_64/mmu.c
+9 -8
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@@ -52,14 +52,14 @@ static void invalidate(void* addr){
static uint64_t* next(uint64_t* table, size_t offset){
table = (uint64_t)table & ~(0xFFF);
table = (uint64_t)table & ~((uint64_t)0xFFF);
if(table < limine_hhdm_offset){
table = (uint64_t)table & ~(1 << 63); // remove NX
table = (uint64_t)table & ~(1 << (uint64_t)63); // remove NX
table = (uint64_t)table + (uint64_t)limine_hhdm_offset;
}
return table[offset] & ~(0xFFF);
return table[offset] & ~((uint64_t)0xFFF);
}
@@ -135,8 +135,8 @@ static uint64_t getmapping(arch_mmu_tableptr context, void* vaddr){
void* arch_mmu_getphysicaladdr(arch_mmu_tableptr context, void* addr){
uint64_t paddr = getmapping(context, addr);
paddr &= ~(0xFFF);
paddr &= ~ARCH_MMU_MAP_NOEXEC;
paddr &= ~((uint64_t)0xFFF);
paddr &= ~(uint64_t)ARCH_MMU_MAP_NOEXEC;
return paddr;
}
@@ -145,12 +145,14 @@ bool arch_mmu_isaccessed(arch_mmu_tableptr context, void* addr){
}
void arch_mmu_changeflags(arch_mmu_tableptr context, void* addr, size_t flags, size_t count){
for(size_t i = 0; i < count; ++i){
uint64_t mapping = getmapping(context, addr);
if(!mapping)
continue;
mapping &= ~(0xFFF); // get addr
mapping &= ~ARCH_MMU_MAP_NOEXEC;
mapping &= ~((uint64_t)0xFFF); // get addr
mapping &= ~((uint64_t)1 << 63);
mapping |= flags;
setpage(context, addr, mapping);
addr += PAGE_SIZE;
@@ -166,7 +168,6 @@ int arch_mmu_map(arch_mmu_tableptr context, void* paddr, void* vaddr, size_t fla
int ret = setpage(context, vaddr, entry);
return ret;
}